The following entry is part of a commentary on Ezekiel 36-39, which is fictionalized in my book, The Last Aliyah – Book 1 of The Time of Jacob’s Trouble trilogy.
Ezekiel 37:20-22 – And the sticks whereon thou writest shall be in thine hand before their eyes. And say unto them, Thus saith the Lord GOD; Behold, I will take the children of Israel from among the heathen, whither they be gone, and will gather them on every side, and bring them into their own land: And I will make them one nation in the land upon the mountains of Israel; and one king shall be king to them all: and they shall be no more two nations, neither shall they be divided into two kingdoms any more at all:
In 1948, David Ben-Gurion used these passages in Ezekiel to declare Israel to be a sovereign nation for the first time since 604 BC.
And when the nation came back into existence in 1948, it came back as the nation of Israel once again, and not as two separate nations like they had been in the past.
Ezekiel 37:23 – Neither shall they defile themselves any more with their idols, nor with their detestable things, nor with any of their transgressions: but I will save them out of all their dwellingplaces, wherein they have sinned, and will cleanse them: so shall they be my people, and I will be their God.
During and after the Tribulation, Israel will forsake their religion of works and Law, and call upon Jesus their Messiah to save them, when all the nations of the world gather together against them in the Valley of Armageddon.
Ezekiel 37:24 – And David my servant [shall be] king over them; and they all shall have one shepherd: they shall also walk in my judgments, and observe my statutes, and do them.
Most likely, David will not be resurrected to rule over them (though that IS possible); this is probably speaking of Jesus ruling over Israel as their king, and David is figuratively the “root” of Jesus, since he was the first king of the line, while Jesus is the final king of the house of David.